ACSM strength reminder
New guidance amplified in reporting this week: adults should do strength training at least twice a week to maximize muscle gains and lower injury risk — foundational for any runner who wants durability. (prevention.com) Experts are doubling down on consistency and recovery as the biggest returns for long‑term fitness. (medium.com)
ACSM released a new Position Stand titled “Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults” on March 17, 2026, published in Medicine & Science in Sports & Exercise and chaired by Stuart M. Phillips, PhD, FACSM. (acsm.org) The guidance is an umbrella review that synthesized 137 systematic reviews covering more than 30,000 participants, and it represents ACSM’s first major update to resistance‑training guidance since 2009 (a 17‑year gap). (acsm.org) The Position Stand gives specific prescription ranges: for maximal strength the authors cite heavier loads (~80% of 1‑RM) with 2–3 sets per exercise; for hypertrophy they recommend roughly 10 sets per muscle group per week; and for power they endorse moderate loads (30–70% 1‑RM) with an emphasis on fast concentric action. (acsm.org) Authors concluded several common gym doctrines lacked consistent benefit for the average healthy adult—training to momentary failure, machine vs. free‑weight choice, and complex periodization did not reliably change outcomes—so the paper prioritizes adherence and simple, individualizable programs. (acsm.org) The update explicitly notes that nontraditional modalities (elastic bands, bodyweight, home routines) produce marked improvements in strength, hypertrophy, and physical function, and the paper links those functional gains to better day‑to‑day performance and reduced injury risk in adults. (acsm.org) Supplementary coverage and trial data cited by ACSM reference practical timeframes—randomized studies have shown measurable strength and hypertrophy from sessions as short as about 30 minutes per workout—and ACSM published an accompanying “5 Things to Know” infographic and implementation sheet for practitioners. (mensfitness.com)
